1779g 
WTB Laserlite disc hub
Velocity Dyad (a selected 506g, my others are 540g, claimed 480g)
Sapim CX-Ray spokes (very light, and flattened for stifness)
Aluminum nipples
Some tube
Bontrager Jones tire
Formula 160mm rotor
Salsa QR
Both my hub and spokes are considered "very light". Hub saves about 105g over yours, spokes about 50g. The rest is in small differences in our Dyads, rimtape, nipples, and tube.
You're not carrying any dead weight in that wheel, this is just what 29" wheels weigh.
Suppose you'd try other wheels or parts for them.
-A Hugi 240 hubset is about 200g lighter (not sure exactly)
-Your spokes are fine, lighter ones often are a comprimize or really $$$
-Alu nipples seems to hold just fine, and save over 40g per wheelset.
-There are some 130g 29" tubes on the market, well worth a try. Yours could be around 180g.
-Bontrager rims are an actual 480g a piece, quite probably saving you 100g for the set.
-For the time being, the Jones tire is the lightest option, and it offers lots of meat at that weight. 560g is like a 500g 26" tire, which is the norm for race tires that don't wreck in their first ride on them.
-New Avid rotors can be really light, older ones not-so-light. My Formula's are on the light side, 113g, some like older Shimano Deore are closer to 150g. Some use ti rotor bolts, or over alternating with alu, but that's the last spare grams even I haven't invested in.
-Thinner tape to replace velox saves a couple dozen grams.
-Some go through the trouble of bolt-on skewers that do save dozens of grams. Can be cheap at times, and clamp well.
I found over a pound in your wheelset, but is that worth it to you? You have a bomber set now. Not that that ever kept ME from getting newer, lighter set...
WTB Laserlite disc hub
Velocity Dyad (a selected 506g, my others are 540g, claimed 480g)
Sapim CX-Ray spokes (very light, and flattened for stifness)
Aluminum nipples
Some tube
Bontrager Jones tire
Formula 160mm rotor
Salsa QR
Both my hub and spokes are considered "very light". Hub saves about 105g over yours, spokes about 50g. The rest is in small differences in our Dyads, rimtape, nipples, and tube.
You're not carrying any dead weight in that wheel, this is just what 29" wheels weigh.
Suppose you'd try other wheels or parts for them.
-A Hugi 240 hubset is about 200g lighter (not sure exactly)
-Your spokes are fine, lighter ones often are a comprimize or really $$$
-Alu nipples seems to hold just fine, and save over 40g per wheelset.
-There are some 130g 29" tubes on the market, well worth a try. Yours could be around 180g.
-Bontrager rims are an actual 480g a piece, quite probably saving you 100g for the set.
-For the time being, the Jones tire is the lightest option, and it offers lots of meat at that weight. 560g is like a 500g 26" tire, which is the norm for race tires that don't wreck in their first ride on them.
-New Avid rotors can be really light, older ones not-so-light. My Formula's are on the light side, 113g, some like older Shimano Deore are closer to 150g. Some use ti rotor bolts, or over alternating with alu, but that's the last spare grams even I haven't invested in.
-Thinner tape to replace velox saves a couple dozen grams.
-Some go through the trouble of bolt-on skewers that do save dozens of grams. Can be cheap at times, and clamp well.
I found over a pound in your wheelset, but is that worth it to you? You have a bomber set now. Not that that ever kept ME from getting newer, lighter set...